19485 - Tweco 4217 Mini-MIG Nozzle, 1/4 Inch Bore

Get Into Tight Spots with the Tweco 4217

If you are running a Tweco Mini-MIG gun, you know that sometimes standard nozzles just feel too bulky for the delicate work you're trying to do. That's where the Tweco 4217 (19485) nozzle comes in. With a super-compact 1/4-inch bore, this nozzle is your best friend when you need to weld in a tight corner, inside a channel, or on thin sheet metal where you need pinpoint gas coverage without a massive gas cup getting in your way. It’s the perfect size for automotive bodywork, hobbyist projects, and light fabrication where precision beats raw power.

Built for the Mini-MIG

This isn't a generic one-size-fits-all part. The 4217 is threaded specifically to screw right onto your Mini-MIG gun. No wobbling, no falling off mid-weld. The internal threads ensure a snug fit that keeps your gas flowing exactly where it needs to go—right over the puddle. Because it's made from high-quality copper, it handles the heat well and resists spatter sticking better than cheaper alternatives. When spatter does build up, a quick ream or a tap is usually all it takes to clear it out and get back to burning wire.

Why Bore Size Matters

You might wonder why you'd want a 1/4-inch nozzle when standard 1/2-inch ones are so common. It comes down to gas velocity and access. A smaller opening creates a more focused stream of shielding gas, which is great for short-circuit MIG welding on thinner steel. It also lets you see what you are doing. When you are trying to lay a perfect bead on a small bracket, a giant nozzle blocks your view. The 4217 keeps the profile slim so you can watch the puddle wet out perfectly. Keep a few of these in your toolbox so you're never caught without the right tip for the job.

Reliable Performance

Tweco is a name we all trust in the industry, and their consumables are no exception. Whether you are fixing a fender or fabricating a custom bracket, using genuine Tweco parts like the 4217 ensures your Mini-MIG gun performs like it did the day you bought it. Don't let a worn-out or clogged nozzle ruin your weld with porosity; swap it out for a fresh 4217 and keep your arcs smooth and your welds clean.